DATA MANAGEMENT SYSTEM (DBMS) Grade XII Chapter 1
1.1 INTRODUCTION TO DATA, DATABASE, DATABASE SYSTEM, DBMS Data Any raw fact or figure related to a person or something. Maynothavesignificant meaning by itself. Can be in any form, such as letters, numbers, words, images, audios or videos. source of information. For example: RAM, 20. Information Processed data or organized collection of related data that has significant meaning. gives meaningful information. can be used as data for further processing. helps to make correct decisions. For example: RAM is 20 years old boy Database A collection of data or information related to somebody or something on any subject or purpose. can retrieve a variety of information from databases. can be managed manually or by using suitable software on a computer. Telephone directory, mark ledger, attendance register, flight schedule, library catalogue, census, encyclopedia, diction...